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Atomic-scale stick-slip friction on a metallic glass in corrosive solutions.
- Source :
-
Tribology International . Jul2022, Vol. 171, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- Atomic-scale friction measurements were performed on a metallic glass in corrosive solutions using an atomic force microscope. An irregular stick-slip motion was observed and attributed to the amorphous structure of corroded surfaces. The friction data are interpreted based on the Prandtl-Tomlinson model by considering the disordered surface interaction potential. The transition between different stick-slip regimes, namely smooth sliding, slips over a basic lattice distance or multiple lattice sites, is a position-dependent characteristic on the amorphous surface. The stronger corrosion causes a significant increase in the probability of multiple slips accompanied by larger maximal forces and leads to a higher average friction. Our findings contribute to the understanding of atomic-scale friction on amorphous surfaces and fundamental friction mechanisms in corrosive conditions. • Irregular stick-slip friction is observed by AFM on a metallic glass in corrosive solutions. • The effect of corrosion on friction is explained by frictional slip over multiple lattice sites. • An analytical model is proposed to interpret nanoscale stick-slip friction on amorphous surfaces. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0301679X
- Volume :
- 171
- Database :
- Academic Search Index
- Journal :
- Tribology International
- Publication Type :
- Academic Journal
- Accession number :
- 156471886
- Full Text :
- https://doi.org/10.1016/j.triboint.2022.107545